Lubricating device



Dec.29,1936. @.BCLARK 2,066,030

LUBRICATNG DEVICE Filed March 22. 1955 INVENTOR. 0 7' 7'0 5. CZ. @eff A TTORNEY Patented Dec. 29, 1936 LUBRCATING DEvrcE om B. Clark, Chicago, Ill., assigner u)V The Lubrication v`Corporation, Chicago,

ration of Delawarev Ill., a corpo- Application 'March 22, 1935, serial N0..12,4o1

6 Claims.

nular ring encircling the lower part of the reserv Voir and connected to the hub portion. The hub` portion is grooved to receive the support and engages the piston at its center so that depression of any part of the ring causes the hub to pivot about the support and movethe piston in the cylinder. A spring is preferably provided to urge the piston out of the cylinder into engagement with the hub," thus holding thehub against the support.

Other objects, advantages and novel features will appear from the lfollowing detailed description when read in connection with the accompanying drawing showing one embodiment of the invention. It will beunderstood, however, that the drawing is for the purpose of illustration only and is not to be' taken as a definition of the scope of the invention, reference being had for this purpose to the appended claims.

In the drawing wherein like reference numerals indicate like parts throughout the several views:

Fig. 1 is a side view of a portable lubricant pump embodying the invention;

Figure 2 is a partial section taken substantially at the center of Fig. 1; and l Figure 3 is a partial section on line III--III of Fig. 2.

Referring more particularly to the drawing, there is shown a portable lubricant pump embodying the invention constituted by a vertical cylindrical reservoir I0 supported on legs l2 which `have suitable wheels I4 and/or casters i6. The reservoir has a lid I8 secured in place by any suitable means such as Wing nuts 26 and may, if desired, be provided with an inlet 22 for air under pressure and a pressure gauge 24.

'Ihe reservoir may be filled with lubricant directly but is preferably intended to receive a cartridge 26 having an outlet in one end for sealing engagement with an outlet nipple 28. The opposite end of the cartridge (not shown) has a (c1. zel-47.1) p l slidablet therein and is adapted to be forced down by air pressure, either atmospheric or vsuperatmospheric, to force .lubricant out of the outlet.' With this arrangement, when a cartridge' is empty it is removed and replaced by a full one.

The legs are formed integral with or secured to a suitable block 3S to which the reservoir is also secured as clearly shown in Fig.`2. Thisblock is drilled to provide a cylinder 32 whichA is connected tothe inlet nipple ,2,8 and an outlet passage 34 also vcommunicating with the cylinder. An outlet pipe 33 is screwed into the outlet passage and is connected to a flexible conduit 38 having a suitable discharge nozzle 40 secured'thereto for' discharging lubricant at any desired point.

Spring pressed ball check valves 42 are providedv inthe inlet and outlet passages to control the iiow of lubricant.

A cylindrical sleeve 4s is secured in the Cylinder 32 and a piston 46 slidably' fits therein. The sleeve may be held in place by a cup member 48 screw threaded or otherwise suitably' secured to the block 30 and this cup member may also hold a packing for the piston. The piston has secured at its outer end a disc 50 and a suitable coil spring 52 acts between this disc and the block to urge the piston out of the cylinder.

A support in the form of anannular ring54 is rigidly secured to the block 30 .by means of posts or legs 56. As shown, four posts are provided but it will be obvious that any desired number might be used.

In order to operate the piston, operating mechanism is provided constituted by a hub 58 and an annular ring 60 connected by a plurality of rigidspokes 62.. The hub rests on the ring 54 and is preferably depressed in its central portion to proof the reservoir and spokes 62 are curved to raise f this ring above the plane of the hub.

The ring 60 may be operated by hand or in any other desired manner but in the formshown is particularly adapted to be ,depressed by the footof an operator. Downward pressure on the ring 60 at any point rocks the operating member about that point on the support 54 closest to the point at which pressure is applied as indicatedv in dotted lin-es in Fig. 2. This raises the piston 46 in the cylinder forcing lubricant past the outlet check valve and out the outlet and nozzle 40. Upon release of the pressure on ring 60, the

spring 52 forces the piston downwardly,creating a void in the cylinder which is filled by grease from the reservoir owing into the cylinder through nipple 28. The piston also presses onl pin 64 pressing the operating member against the support and returning it to the full line position of Fig. 2.' The operation can be repeated at will by again depressing ring 60, each operation forcing a charge of lubricant out through the nozzle.

Thus by the present invention there is pro vided a novel pump which issimple in construction and operation, has few'moving parts which are apt to get out of order, and which can be operated from any desired point.

While only one embodiment of the invention has been shown and described. it will be apparent to" those skilled in the art that various changes might be made therein or that the same might hev embodied inyother forms without departing from the scope of theV invention.

For example, instead of 'a complete annular operating ring, a segment or a plurality of segments might be employed either lying in a horizontal `plane as shown', or lying in a vertical plane yfor hand operation.v Also, instead of rest-` ing loosely on its operating member, the ,pump plunger might be connected thereto as by-a link.

Various other changes might also be made and it is therefore, not intended that the scope of the invention shall be limited tothe form shown 'nor' by the terms of the appended otherwise than claims. u K What is claimed is:

1. A pump comprising a reservoir, a' cylinder rigidly secured at one end thereof in communication therewith, a piston' in the cylinder-,and op-` erating means for the piston including van annular portion encircling the reservoir and oper-` able fromrany point to move the piston.

. 2. A lubricant dispenser comprising a vertical reservoir, a vertical cylinder rigidly secured atv the lower end thereof in communication there-A with, ay piston slidable in the cylinder, and an annular operating member forjthe piston lying in a horizontal planek and operable, from any -point topmove the piston. j n

3. A lubricant dispenser comprising a vertical reservoir, a vertical cylinder rigidly secured at the lower end thereof in communication therewith, a piston slidable in the cylinder, an an-v nular ring secured to the cylinder and an operatingmember having a part engaging the annular ring, a part *engagingv the piston kand an annular portion encircling said reservoir.

4'. A pumpcomprlslng a cylinder, a piston slid able therein, an operating member having an annular groove in a plane perpendicular tothe axis of the cylinder; andk an annular support vse-- cured'to the'cylinderV and 'lying in saidgroove whereby the operating member can pivot about.

any pointon said'an'nula'r support.A

5. "A pump comprising ai cylinder, a piston slid ablev therein, an vannular support xed relative to the cylinder, `an operating member having an annulan'grofove: receivingfandy resting" on said support,'and resilient means'urging the-piston against the operating memberand the operating` member against the support, said operating memfber being rockable about anypoint in the cir-V cumference of the support as a pivot to move theV piston.

6; In a pump, an operating member compris,- ing a hubportion, any annular ring spaced` from the hub portion, and spokes connecting said hub.

portion and ring, said hub portion having an e'xternal. annular grooveforengagement with aV support. Y g O'I'IO B. CLARK;L A 

